查询词典 sediments

Pore waters can be obtained from sediments by centrifugation, compression, or with samplers utilizing whole core squeezer, suction, dialysis, and capillary methods in situ.

间隙水的制备方法有离心法、压榨法、渗析法、吸气引液法等，这些方法各有利弊。

According the demand of the national"908"special project, the distribution of the detrital minerals and the characteristics of genetic mineralogy of the surficial sea-floor sediments offshore Hainan islands(CJ19 subzone) were studied by means of lens stereoscope, micropolariscope, SEM, EMPA and LA-ICPMS.

依托国家"908"专项项目，借助立体及偏光光学显微镜、扫描电镜、电子探针微分析和激光剥蚀等离子质谱等先进技术手段和方法，对环海南岛海域(CJ19区块)海底表层沉积物中碎屑矿物的分布和锆石、石榴石的成因矿物学进行了研究。

The remote sensing differential information processing technique, the X fluorescence survey of stream sediments and the subaerial base rock gama survey technique were jointly applied in the Puziwan gold deposit, Shanxi to study the gold metallogenic fluid field .

综合运用遥感微差信息处理技术、水系沉积物X荧光测量和地表基岩伽玛能谱测量方法研究了山西堡子湾金矿的成矿流体场，发现主要的矿化蚀变带呈NW向展布，与含矿的NEE向角砾岩带斜交，表明成矿后受到一定程度的改造。

Oxygen and carbon isotope of the carbonate sediments separately indicate lake waterδ~(18)O andδ~(13)C_,δ~(18)O indicates the volume of the input water which is a good index of Lake water level changes;δ~(13)C_ indicates the degree of the exchange between the lake and the atmosphere and indirectly indicates the ice cover time controlled by the temperature.3. Environmental changes in Lake Sugan drainage area during the past 2670 years reconstructed by mul-index synthesis analysis indicates that during

沉积物碳酸盐氧、碳同位素分别反应了湖水的δ~(18)O和δ~(13)C_，δ~(18)O指示湖水体积变化，是湖泊水位变化的良好指标；δ~(13)C_则指示了湖水和大气的交换程度以及入流水量的大小，间接指示了温度控制下的冰封时间长短。3、多指标综合分析重建的苏干湖流域晚全新世近2670年来的环境变化显示，苏干湖2670年来流域持续变干；出现截然不同的两个大的阶段，即

Detailed examination of sedimentary cores retrieved from Sugan Lake in the northern Qaidam Basin of northwest China\'s Tibetan Plateau reveal that fine laminated beddings form in the sediments where water depth exceeds 3 m.

基于沉积物收集装置的现代过程研究发现，苏干湖夏秋季以浅色的单水方解石为主，冬半年以深色有机质为主，现代湖泊能够形成冬半年深色层和夏半年浅色层的纹层沉积。

In order to select a perfective procedure and protocol for the fine grain OSL dating, measurements of natural IRSL and GLSL signals from a range of modern sediment samples collected from different sedimentary environment, tests of IRSL and GLSL bleaching behaviors for loess fine grains under sunlamp, and comparisons of the equivalent dose determined by different methods have been undertaken, as well as IRSL and/or GLSL dating of more than forty sediments samples taken from late Quaternary deposit strata at different site in North China.

为了选择更合适于中国北方沉积物样品细颗粒OSL测年的实验程序和技术，进行了华北地区不同沉积环境的现代沉积物样品的细颗粒天然IRSL和GLSL信号测量，黄土细颗粒IRSL和GLSL的光晒退测试，不同方法获得的等效剂量值的比较分析，以及取自华北不同地区的40余个晚第四纪沉积物样品的IRSL和GLSL测年。

Magnetic basement: The upper surface of extensive rocks having relatively large magnetic susceptibilities compared with those of sediments.

磁性基底：与沉积物相比磁化率值较大的大范围岩石的顶面。

They can effectively remove impurites, sediments, suspensive substances as well as iron and manganese in the water.

该设备广泛应用于矿泉水、纯水、软化水和饮用水的制取等方面的预处理，也可用于反渗透、电渗析、超滤等前段预处理。

It indicated that the heavy metal pollution was not serious in the Guanting Reservoir and Yongding River sediments.

初步评价结果认为，官厅水库及永定河沉积物中重金属污染并不严重。

The Mg-rich volcanic rocks consist of high-Mg decite and high-Mg basalt which are the products of congenetic magma,in Ashele are, Xinjiang. In comparison with tholeiite, their εNd are obviously low, implying that they are contaminated by the oceanic sediments during their forming process.

阿舍勒富镁火山岩由高镁英安和高镁玄武岩组成它们可能是同源岩浆的产物，与共生的拉斑玄武岩相比，富镁火山岩钕同位素明显富集，反映在其形成过程中受到了大洋沉积物的混染。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。